Variable Number % Diabetes 24 32 % Type I  5 7% Type II 19 25 % Hypertension 51 68 % Ischemic heart disease 17 23 % Hepatitis (B and C) 7 9 % Hepatitis B 4 5 % Hepatitis C 3 4 % Bed ulcer 2 3 % Asthma 3 4 % Malignancy 1 1 % SLE 1 1 %

Table 2: Distribution of study population by medical history.